Radioactive vs irradiated - Revision history

Jmdonev: 1 revision imported

2018-09-03T22:23:37Z

1 revision imported

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energy>Jmdonev at 02:52, 13 August 2018

2018-08-13T02:52:41Z

← Older revision		Revision as of 02:52, 13 August 2018
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	[[Category:Done ~~2015~~-07-24]]		[[Category:Done 2018-08-03]]
	<onlyinclude>A '''[[radioactive]]''' object and an '''[[irradiated]]''' object are very different things. Although they both involve [[radiation]], the way that this radiation interacts with the object is what makes a radioactive substance different than a substance or object that has been irradiated.</onlyinclude>		<onlyinclude>A '''[[radioactive]]''' object and an '''[[irradiated]]''' object are very different things. Although they both involve [[radiation]], the way that this radiation interacts with the object is what makes a radioactive substance different than a substance or object that has been irradiated.</onlyinclude>

	==Radioactive Objects==		==Radioactive Objects==
	:: [[radioactive\|''main page'']]		:: [[radioactive\|''main page'']]
	A '''radioactive''' substance is one that releases radiation from its surface, potentially through some [[radioactive decay]] ~~process - such~~ as [[alpha decay]], [[beta decay]], or [[gamma decay]]. The radiation that is released is [[energy]] that doesn't require a medium to travel and is released in a small, quantized packets of energy known as [[photon]]s. Radioactive objects can be dangerous to human health or not, depending on their levels of radioactivity. Many common objects, even bananas and smoke detectors, are radioactive at levels that are not harmful. However if the levels of radiation from the object become too great there can be associated health risks.		A '''radioactive''' substance is one that releases radiation from its surface, potentially through some [[radioactive decay]] process—such as [[alpha decay]], [[beta decay]], or [[gamma decay]]. The radiation that is released is [[energy]] that doesn't require a medium to travel and is released in small, quantized packets of energy known as [[photon]]s. Radioactive objects can be dangerous to human health or not, depending on their levels of radioactivity. Many common objects, even bananas and [[smoke]] detectors, are radioactive at levels that are not harmful. However if the levels of radiation from the object become too great there can be associated health risks.

	==Irradiated Objects==		==Irradiated Objects==
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	==Comparison==		==Comparison==

			[[File:Radioactive vs irradiated .png\|500px\|thumb\|right\|Figure 1. A radioactive substance has the ability to emit radiation—an irradiated substance can absorb and/or reflect. <ref>Made internelly by a member of the Energy Education team.</ref>]]

	Essentially, the main difference between the two is how radiation is ''connected'' to the object being discussed. A radioactive object is the '''source''' of some radiation, while an irradiated object is some object that has had some radiation interact with it.<ref name="RE1">Difference Between. (July 8, 2015). ''Difference Between Radiation and Irradiation'' [Online]. Available: http://www.differencebetween.com/difference-between-radiation-and-vs-irradiation/</ref>		Essentially, the main difference between the two is how radiation is ''connected'' to the object being discussed. A radioactive object is the '''source''' of some radiation, while an irradiated object is some object that has had some radiation interact with it.<ref name="RE1">Difference Between. (July 8, 2015). ''Difference Between Radiation and Irradiation'' [Online]. Available: http://www.differencebetween.com/difference-between-radiation-and-vs-irradiation/</ref>

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	Additionally, irradiated objects and radioactive objects tend to serve different purposes. Food is generally irradiated to control spoilage and eliminate food-borne pathogens and bacteria.<ref>EPA. (July 8, 2015). ''Food Irradiation'' [Online]. Available: http://www.epa.gov/radiation/sources/food_irrad.html</ref> Conversely, radioactive [[isotope]]s are used extensively in the medical field. As well, radioactive isotopes are used in the nuclear [[fission]] [[nuclear reactor\|reactors]] that are used to [[electricity generation\|generate electricity]] worldwide.		Additionally, irradiated objects and radioactive objects tend to serve different purposes. Food is generally irradiated to control spoilage and eliminate food-borne pathogens and bacteria.<ref>EPA. (July 8, 2015). ''Food Irradiation'' [Online]. Available: http://www.epa.gov/radiation/sources/food_irrad.html</ref> Conversely, radioactive [[isotope]]s are used extensively in the medical field. As well, radioactive isotopes are used in the nuclear [[fission]] [[nuclear reactor\|reactors]] that are used to [[electricity generation\|generate electricity]] worldwide.

			==For Further Reading==
			*[[Radioactive]]
			*[[Radioactive decay]]
			*[[Alpha decay]], [[Beta decay]], [[Gamma decay]]
			*[[Blackbody radiation]]
			*[[Light bulb]]
			*Or explore a [[Special:Random\|random page]]


	==References==		==References==
	{{reflist}}		{{reflist}}
	[[Category:Uploaded]]		[[Category:Uploaded]]

J.williams: 1 revision imported

2015-08-26T21:31:34Z

1 revision imported

← Older revision	Revision as of 21:31, 26 August 2015
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J.williams at 16:58, 12 August 2015

2015-08-12T16:58:48Z

New page

[[Category:Done 2015-07-24]]
<onlyinclude>A '''[[radioactive]]''' object and an '''[[irradiated]]''' object are very different things. Although they both involve [[radiation]], the way that this radiation interacts with the object is what makes a radioactive substance different than a substance or object that has been irradiated.</onlyinclude>

==Radioactive Objects==
:: [[radioactive|''main page'']]
A '''radioactive''' substance is one that releases radiation from its surface, potentially through some [[radioactive decay]] process - such as [[alpha decay]], [[beta decay]], or [[gamma decay]]. The radiation that is released is [[energy]] that doesn't require a medium to travel and is released in a small, quantized packets of energy known as [[photon]]s. Radioactive objects can be dangerous to human health or not, depending on their levels of radioactivity. Many common objects, even bananas and smoke detectors, are radioactive at levels that are not harmful. However if the levels of radiation from the object become too great there can be associated health risks.

==Irradiated Objects==
:: [[irradiated|''main page'']]
An '''irradiated''' substance is one that has had radiated energy interact with it, generally the radiation has simply fallen on the surface.<ref name="RE1"/> When radiation is incident on a surface, it is either absorbed or reflected depending on the properties of the surface. [[Blackbody radiation|Blackbodies]] absorb all the radiation incident on the surface while other objects reflect to some degree.

==Comparison==
Essentially, the main difference between the two is how radiation is ''connected'' to the object being discussed. A radioactive object is the '''source''' of some radiation, while an irradiated object is some object that has had some radiation interact with it.<ref name="RE1">Difference Between. (July 8, 2015). ''Difference Between Radiation and Irradiation'' [Online]. Available: http://www.differencebetween.com/difference-between-radiation-and-vs-irradiation/</ref>

An analogy may be helpful, an irradiated object is like a book with [[light]] shining on it, while a radioactive object is like a [[light bulb]]. Radioactive objects give off the radiation that is produced from nuclear processes inside of them. Being irradiated can affect the properties of the object (like killing germs in food) but doesn't make the object radioactive.<ref>Thanks to Dr. Anna Harding for this excellent analogy, private communication with Dr. Jason Donev in April of 2011.</ref>

Additionally, irradiated objects and radioactive objects tend to serve different purposes. Food is generally irradiated to control spoilage and eliminate food-borne pathogens and bacteria.<ref>EPA. (July 8, 2015). ''Food Irradiation'' [Online]. Available: http://www.epa.gov/radiation/sources/food_irrad.html</ref> Conversely, radioactive [[isotope]]s are used extensively in the medical field. As well, radioactive isotopes are used in the nuclear [[fission]] [[nuclear reactor|reactors]] that are used to [[electricity generation|generate electricity]] worldwide.

==References==
{{reflist}}
[[Category:Uploaded]]